Brienomyrus niger (Günther, 1866)

Catalog of Fishes (gen., sp.) | ITIS | CoL

Classification	Actinopterygii \| Osteoglossiformes \| Mormyridae
Synonyms	Mormyrus niger, Gnathonemus niger, Gnathonemus baudoni, ... more
Common names	黑体锥颌象鼻鱼, Yalgen-peel-puudu, Um shiffa, ... more

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Main reference

Bigorne, R. 1990. (Ref. 2915)
Other references | Biblio | Coordinator | Collaborators

Size / Weight / Age

Max length : 13.0 cm SL male/unsexed; (Ref. 2915)

Environment

Benthopelagic; freshwater; pH range: 5.0 - ?

Climate / Range

Tropical; 22°C - 24°C (Ref. 12468)

Africa: most of the great sahélo-soudanian basins (Senegal, Gambie, Niger, Volta, Ouémé and Chad). Also known from the White Nile (Ref. 3203).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 0; Dorsal soft rays (total): 14 - 20; Anal spines: 0; Anal soft rays: 24 - 30. LS/D 2.9-4.3;LS/PD 10.8-15.5. Pectoral fin longer or at least as long as head. Globular swelling on chin reduced. Base of dorsal fin 0.51-0.78 x of the anal fin base. Generally uniformly silver color but may sometimes be irregularly mottled on the sides.

Inhabits fringing vegetation in the Sudd and migrates onto the floodplain to spawn. Bottom feeding insectivore (Ref. 28714). Possesses electro receptors over the entire head, the dorsal and ventral regions of the body, but absent from the side and the caudal peduncle where the electric organ is located (Ref. 10011). Also sensitive to sound frequencies (Ref. 10831).


IUCN Red List Status (Ref. 57073)	Threat to humans
Not Evaluated	Harmless

Human uses


More information
Countries FAO areas Ecosystems Occurrences Introductions Ecology Diet Food items Food consumption Ration	Common names Synonyms Metabolism Predators Ecotoxicology Reproduction Maturity Spawning Eggs Egg development	Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology Larvae Larval dynamics Recruitment	Other references Biblio Aquaculture Aquaculture profile Strains Genetics Allele frequencies Heritability Diseases Processing	Collaborators Pictures Stamps Sounds Ciguatera Speed Swim. type Gill area Otoliths Brains Vision

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Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

Medium, minimum population doubling time 1.4 - 4.4 years (Assuming Fec < 5,000)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Low vulnerability (15 of 100)	Not marketed/unknown

Entered by Cruz, Tess

Modified by Sa-a, Pascualita

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Page last modified by : elaxamana, 15 July 2009

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